Hugh Aldous

Insider

First SEC filing: April 12, 2005 · Latest: Jan. 22, 2020

On this page

Insider at Companies where this person is a reporting insider.
Insider transactions Every share this person bought or sold, from Form 4 filings.
Derivatives Options and other derivative holdings reported by this person.
Initial holdings The stakes this person held when they first started reporting.

Insider at

IOSP selling Dec. 6, 2019

Insider transactions

0 buys (P) 0 sells (S) Net: $0 + 62 non-open-market transactions below last 12 months, based on the transactions shown below

Price change vs current quote, split-adjusted for corporate actions since the filing — not benchmarked, not annualized, not size-weighted

62 other filings hidden

Date	Ticker	Code	Shares	Price	Value	Owned after	Δ own	A/D	vs now
Feb. 24, 2020	IOSP	A	313	—	—	313 Direct	—	Acquired	(price as of 2026-08-20)
Feb. 24, 2020	IOSP	A	627	—	—	627 Direct	—	Acquired	(price as of 2026-08-20)
Dec. 6, 2019	IOSP	S	3,000	$100.64	$301,920	12,380 Indirect	-19.51%	Disposed	-8.2% (price as of 2026-08-20)
May 29, 2019	IOSP	M	1,522	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
May 29, 2019	IOSP	M	1,660	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
May 29, 2019	IOSP	F	990	$80.98	$80,170	20,157 Direct	-4.68%	Disposed	14.0% (price as of 2026-08-20)
May 29, 2019	IOSP	M	1,522	$29.56	$44,990	21,147 Direct	+7.76%	Acquired	212.4% (price as of 2026-08-20)
May 29, 2019	IOSP	F	1,053	$80.98	$85,272	19,625 Direct	-5.09%	Disposed	14.0% (price as of 2026-08-20)
May 29, 2019	IOSP	M	1,660	$27.11	$45,003	20,678 Direct	+8.73%	Acquired	240.6% (price as of 2026-08-20)
Feb. 25, 2019	IOSP	A	370	$81.07	$29,996	11,614 Direct	+3.29%	Acquired	13.9% (price as of 2026-08-20)
Feb. 25, 2019	IOSP	A	740	—	—	11,244 Direct	+7.04%	Acquired	(price as of 2026-08-20)
May 22, 2018	IOSP	M	4,335	$10.38	$44,997	10,504 Direct	-29.21%	Disposed	789.7% (price as of 2026-08-20)
May 22, 2018	IOSP	S	1,687	$76.72	$129,427	19,018 Direct	-8.15%	Disposed	20.4% (price as of 2026-08-20)
May 22, 2018	IOSP	M	4,335	$10.38	$44,997	20,705 Direct	+26.48%	Acquired	789.7% (price as of 2026-08-20)
Feb. 20, 2018	IOSP	A	880	$68.20	$60,016	14,839 Direct	+6.30%	Acquired	35.4% (price as of 2026-08-20)
Feb. 20, 2018	IOSP	A	293	—	—	13,959 Direct	+2.14%	Acquired	(price as of 2026-08-20)
May 22, 2017	IOSP	M	3,398	$4.62	$15,699	13,666 Direct	-19.91%	Disposed	1898.9% (price as of 2026-08-20)
May 22, 2017	IOSP	F	1,416	$62.16	$88,019	16,370 Direct	-7.96%	Disposed	48.6% (price as of 2026-08-20)
May 22, 2017	IOSP	M	3,398	$4.62	$15,699	17,786 Direct	+23.62%	Acquired	1898.9% (price as of 2026-08-20)
Feb. 21, 2017	IOSP	A	283	—	—	17,064 Direct	+1.69%	Acquired	(price as of 2026-08-20)
Feb. 21, 2017	IOSP	A	850	$70.60	$60,010	16,781 Direct	+5.34%	Acquired	30.8% (price as of 2026-08-20)
Nov. 18, 2016	IOSP	M	2,224	$20.23	$44,992	15,931 Direct	-12.25%	Disposed	356.5% (price as of 2026-08-20)
Nov. 18, 2016	IOSP	S	672	$63.15	$42,437	14,388 Direct	-4.46%	Disposed	46.2% (price as of 2026-08-20)
Nov. 18, 2016	IOSP	M	2,224	$20.23	$44,992	15,060 Direct	+17.33%	Acquired	356.5% (price as of 2026-08-20)
May 16, 2016	IOSP	M	1,218	$27.08	$32,983	18,155 Direct	-6.29%	Disposed	241.0% (price as of 2026-08-20)
May 16, 2016	IOSP	M	1,218	$27.08	$32,983	12,836 Direct	+10.48%	Acquired	241.0% (price as of 2026-08-20)
Feb. 22, 2016	IOSP	A	441	—	—	19,373 Direct	+2.33%	Acquired	(price as of 2026-08-20)
Feb. 22, 2016	IOSP	A	1,030	$44.18	$45,505	18,932 Direct	+5.75%	Acquired	109.0% (price as of 2026-08-20)
Feb. 22, 2016	IOSP	A	441	—	—	22,797 Direct	+1.97%	Acquired	(price as of 2026-08-20)
Feb. 22, 2016	IOSP	A	1,030	$44.18	$45,505	22,356 Direct	+4.83%	Acquired	109.0% (price as of 2026-08-20)
Aug. 12, 2015	IOSP	P	390	$44.77	$17,460	15,380 Indirect	+2.60%	Acquired	106.3% (price as of 2026-08-20)
Aug. 11, 2015	IOSP	M	3,312	$9.96	$32,988	18,014 Direct	-15.53%	Disposed	827.2% (price as of 2026-08-20)
Aug. 11, 2015	IOSP	F	1,023	$43.75	$44,756	11,618 Direct	-8.09%	Disposed	111.1% (price as of 2026-08-20)
Aug. 11, 2015	IOSP	M	3,312	$9.96	$32,988	12,641 Direct	+35.50%	Acquired	827.2% (price as of 2026-08-20)
Aug. 11, 2015	IOSP	M	3,312	$9.96	$32,988	18,014 Direct	-15.53%	Disposed	827.2% (price as of 2026-08-20)
Aug. 11, 2015	IOSP	F	1,023	$43.75	$44,756	18,618 Direct	-5.21%	Disposed	111.1% (price as of 2026-08-20)
Aug. 11, 2015	IOSP	M	3,312	$9.96	$32,988	19,641 Direct	+20.28%	Acquired	827.2% (price as of 2026-08-20)
Feb. 24, 2015	IOSP	A	444	—	—	21,326 Direct	+2.13%	Acquired	(price as of 2026-08-20)
Feb. 24, 2015	IOSP	A	1,035	$43.95	$45,488	20,882 Direct	+5.21%	Acquired	110.1% (price as of 2026-08-20)
Dec. 1, 2014	IOSP	P	1,000	$42.96	$42,960	16,329 Direct	+6.52%	Acquired	115.0% (price as of 2026-08-20)
Aug. 29, 2014	IOSP	M	2,000	—	—	19,847 Direct	-9.15%	Disposed	(price as of 2026-08-20)
Aug. 29, 2014	IOSP	M	3,340	$9.88	$32,999	21,847 Direct	-13.26%	Disposed	834.7% (price as of 2026-08-20)
Aug. 29, 2014	IOSP	F	800	$42.79	$34,232	16,329 Direct	-4.67%	Disposed	115.8% (price as of 2026-08-20)
Aug. 29, 2014	IOSP	M	2,000	—	—	17,129 Direct	-10.46%	Disposed	(price as of 2026-08-20)
Aug. 29, 2014	IOSP	F	1,799	$42.79	$76,979	15,129 Direct	-10.63%	Disposed	115.8% (price as of 2026-08-20)
Aug. 29, 2014	IOSP	M	3,340	$9.88	$32,999	16,928 Direct	+24.58%	Acquired	834.7% (price as of 2026-08-20)
Aug. 15, 2014	IOSP	P	1,590	$40.41	$64,252	13,588 Direct	+13.25%	Acquired	128.5% (price as of 2026-08-20)
Feb. 14, 2014	IOSP	A	1,089	$46.03	$50,127	25,187 Direct	+4.52%	Acquired	100.6% (price as of 2026-08-20)
July 5, 2013	IOSP	J	559	$40.18	$22,461	12,988 Direct	+4.50%	Acquired	129.8% (price as of 2026-08-20)
Feb. 20, 2013	IOSP	A	1,089	$41.31	$44,987	24,098 Direct	+4.73%	Acquired	123.6% (price as of 2026-08-20)
July 6, 2012	IOSP	J	759	$29.61	$22,474	12,429 Direct	+6.50%	Acquired	211.9% (price as of 2026-08-20)
July 6, 2012	IOSP	J	759	$26.01	$19,742	12,429 Direct	+6.50%	Acquired	255.1% (price as of 2026-08-20)
Feb. 23, 2012	IOSP	A	1,522	$29.56	$44,990	23,009 Direct	+7.08%	Acquired	212.4% (price as of 2026-08-20)
July 6, 2011	IOSP	J	297	$33.61	$9,982	11,670 Direct	+2.61%	Acquired	174.8% (price as of 2026-08-20)
Feb. 22, 2011	IOSP	A	1,660	$27.11	$45,003	21,487 Direct	+8.37%	Acquired	240.6% (price as of 2026-08-20)
Aug. 27, 2010	IOSP	P	4,000	$11.70	$46,800	11,373 Direct	+54.25%	Acquired	689.3% (price as of 2026-08-20)
July 2, 2010	IOSP	J	1,066	$9.38	$9,999	13,373 Direct	+8.66%	Acquired	884.5% (price as of 2026-08-20)
April 6, 2010	IOSP	P	3,000	$12.05	$36,150	12,307 Direct	+32.23%	Acquired	666.4% (price as of 2026-08-20)
Feb. 17, 2010	IOSP	A	4,335	—	—	19,827 Direct	+27.98%	Acquired	(price as of 2026-08-20)
July 6, 2009	IOSP	J	930	$10.75	$9,998	3,307 Direct	+39.12%	Acquired	759.1% (price as of 2026-08-20)
March 24, 2009	IOSP	A	3,398	—	—	15,492 Direct	+28.10%	Acquired	(price as of 2026-08-20)
July 7, 2008	IOSP	J	531	$18.82	$9,993	2,377 Direct	+28.76%	Acquired	390.7% (price as of 2026-08-20)
Feb. 20, 2008	IOSP	A	2,224	—	—	12,094 Direct	+22.53%	Acquired	(price as of 2026-08-20)
July 6, 2007	IOSP	J	139	$59.21	$8,230	923 Direct	+17.73%	Acquired	211.9% (price as of 2026-08-20)
Feb. 21, 2007	IOSP	A	609	—	—	4,935 Direct	+14.08%	Acquired	(price as of 2026-08-20)
July 3, 2006	IOSP	J	324	$25.42	$8,236	784 Direct	+70.43%	Acquired	626.6% (price as of 2026-08-20)
Feb. 13, 2006	IOSP	A	1,656	—	—	4,326 Direct	+62.02%	Acquired	(price as of 2026-08-20)
Aug. 9, 2005	IOSP	P	2,000	$16.40	$32,800	460 Direct	—	Acquired	1026.2% (price as of 2026-08-20)
July 21, 2005	IOSP	J	460	$17.90	$8,234	1,460 Direct	+46.00%	Acquired	931.8% (price as of 2026-08-20)
July 12, 2005	IOSP	A	1,000	—	—	2,670 Direct	+59.88%	Acquired	(price as of 2026-08-20)
July 12, 2005	IOSP	A	1,670	—	—	1,670 Direct	—	Acquired	(price as of 2026-08-20)

P = Open-market purchase · S = Sale · A = Grant/award · M = Option exercise · G = Gift · F = Tax withholding

Insider transactions are not a recommendation; sales are often driven by liquidity or tax reasons.

Derivative holdings (Form 4 Table II)

Options, RSUs and convertible securities reported on Form 4 Table II.

Date	Ticker	Security	Underlying	Exercise price	Expiration	Shares	A/D
Feb. 24, 2020	IOSP	stock option	stock option (313)	$95.70	Feb. 24, 2030	313	Acquired
Feb. 24, 2020	IOSP	Stock Option	stock option (627)	$0.00	Feb. 24, 2023	627	Acquired
May 29, 2019	IOSP	Stock Option	Common Stock (1,522)	$29.56	Feb. 23, 2022	1,522	Disposed
May 29, 2019	IOSP	Stock Option	Common Stock (1,660)	$27.11	Feb. 22, 2021	1,660	Disposed
Feb. 25, 2019	IOSP	Stock Options	Common Stock (370)	$81.07	Feb. 25, 2029	370	Acquired
Feb. 25, 2019	IOSP	Stock Options	Common Stock (740)	$0.00	Feb. 25, 2029	740	Acquired
May 22, 2018	IOSP	Stock Option	Common Stock (4,335)	$10.38	Feb. 17, 2020	4,335	Disposed
Feb. 20, 2018	IOSP	Stock Option	Common Stock (880)	$68.20	Feb. 20, 2028	880	Acquired
Feb. 20, 2018	IOSP	Stock Option	Common Stock (293)	$0.00	Feb. 20, 2028	293	Acquired
May 22, 2017	IOSP	Stock Option	Common Stock (3,398)	$4.62	March 24, 2019	3,398	Disposed
Feb. 21, 2017	IOSP	Stock Options	Common Stock (283)	$0.00	Feb. 21, 2027	283	Acquired
Feb. 21, 2017	IOSP	Stock Options	Common Stock (850)	$70.60	Feb. 21, 2027	850	Acquired
Nov. 18, 2016	IOSP	Stock Option	Common Stock (2,224)	$20.23	Feb. 20, 2018	2,224	Disposed
May 16, 2016	IOSP	Stock Options	Common Stock (1,218)	$27.08	Feb. 21, 2017	1,218	Disposed
Feb. 22, 2016	IOSP	Stock Options	Common Stock (441)	$0.00	Feb. 22, 2026	441	Acquired
Feb. 22, 2016	IOSP	Stock Options	Common Stock (1,030)	$44.18	Feb. 22, 2026	1,030	Acquired
Feb. 22, 2016	IOSP	Stock Options	Common Stock (441)	$0.00	Feb. 22, 2026	441	Acquired
Feb. 22, 2016	IOSP	Stock Options	Common Stock (1,030)	$44.18	Feb. 22, 2026	1,030	Acquired
Aug. 11, 2015	IOSP	Stock Options	Common Stock (3,312)	$9.96	Feb. 13, 2016	3,312	Disposed
Aug. 11, 2015	IOSP	Stock Options	Common Stock (3,312)	$9.96	Feb. 13, 2016	3,312	Disposed
Feb. 24, 2015	IOSP	Stock Options	Common Stock (444)	$0.00	Feb. 23, 2025	444	Acquired
Feb. 24, 2015	IOSP	Stock Options	Common Stock (1,035)	$43.95	Feb. 23, 2025	1,035	Acquired
Aug. 29, 2014	IOSP	Stock Option	Common Stock (2,000)	$0.00	July 12, 2015	2,000	Disposed
Aug. 29, 2014	IOSP	Stock Option	Common Stock (3,340)	$9.88	July 12, 2015	3,340	Disposed
Feb. 14, 2014	IOSP	Stock Options (NEDSOP)	Common Stock (1,089)	$46.03	Feb. 14, 2024	1,089	Acquired
Feb. 20, 2013	IOSP	Stock Options (NEDSOP)	Common Stock (1,089)	$41.31	Feb. 20, 2023	1,089	Acquired
Feb. 23, 2012	IOSP	Stock Option	Common Stock (1,522)	$29.56	Feb. 23, 2022	1,522	Acquired
Feb. 22, 2011	IOSP	Options	Common Stock (1,660)	$27.11	Feb. 22, 2021	1,660	Acquired
Feb. 17, 2010	IOSP	Options	Common Stock (4,335)	$0.00	Feb. 17, 2020	4,335	Acquired
March 24, 2009	IOSP	Options	Common Stock (3,398)	$4.62	March 24, 2019	3,398	Acquired
Feb. 20, 2008	IOSP	Options	Common Stock (2,224)	$20.23	Feb. 20, 2018	2,224	Acquired
Feb. 21, 2007	IOSP	options	common stock (609)	$54.17	Feb. 21, 2017	609	Acquired
Feb. 13, 2006	IOSP	OPTIONS	COMMON STOCK (1,656)	$19.93	Feb. 13, 2016	1,656	Acquired
July 12, 2005	IOSP	OPTIONS	COMMON STOCK (1,000)	$0.00	July 12, 2015	1,000	Acquired
July 12, 2005	IOSP	OPTIONS	COMMON STOCK (1,670)	$19.77	July 12, 2015	1,670	Acquired

Exercise/conversion price is blank when not applicable (e.g. RSUs).

Initial ownership (Form 3) 1 holding

Securities held when first becoming an insider, per SEC Form 3.

Date	Ticker	Security	Shares	Ownership
April 12, 2005	IOSP	COMMON STOCK	1,000	Direct